AAC block production process, AAC plant running process

AAC block production， Main ingredients include fly ash, water, quicklime or lime sludge, cement, aluminum powder and gypsum. The block hardness is being achieved by cement strength, and instant curing mechanism by autoclaving. Gypsum acts as a long term strength gainer. The chemical reaction due to the aluminum paste provides AAC its distinct porous structure, lightness, and insulation properties, completely different compared to other lightweight concrete materials. The finished product is a lighter Block - less than 40% the weight of conventional Bricks, while providing the similar strengths. The specific gravity stays around 0.6 to 0.65. This is one single most USP of the AAC blocks, because by using these blocks in structural buildings, the builder saves around 30 to 35% of structural steel, and concrete, as these blocks reduce the dead load on the building significantly.
plant(Dongyue Brand),Aerated autoclaved brick production line
Contact:Jerry Gao
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Email: [e-mail]
Dongyue Machinery Group company Ltd produce according to PRC standard GB11968-1997 "Aerated Autoclaved Concrete Block Technology(ACC/ALC Block machinery plant(China famousBrand)". As for our company, we are a professional manufacturer on light weight block making machine, AAC machine in China, among top one class in China. we have several overseas offices, like Indonesia office, India office, Vietnam office, Russia office, etc.
1 What Is AAC Block?
Autoclaved Aerated Concrete is a high quality building material manufactured from quartz ,sand ,lime ,cement, aluminum compound and water several natural chemical reactions take place during the manufacturing process that account for AAC 's high strength ,light-weight and thermal properties.Through a manufacturing process that is lower in power consumption than that of clay bricks .it 's possible to produce 5 cubic meters of AAC from only 1 cubic meter has a high load bearing capacity ,is much lighter and can be worked in a manner similar to timber.
AAC is durable, fire retardant, vermin proof and has excellent thermal insulation properties.
2 AAC block Processing Produce description
A . Fly ash or sand will be grinded by ball mill and then made into slurry and stored in slurry tank.
B. The lime stone will be crushed by jaw crusher and lifted into the lime silo through elevator，then will be grinded into powder by dry ball mill machine through belt conveyor, The lime powder will be stored in the lime powder silo for reservation.
C. Raw material preparation process transportation section is equipment with dust cleaner to ensure environment from pollution.
D. After raw material storage， the slurry,cement, lime powder and aluminum powder are weighed and then poured into the pouring mixer for mixing, finally be poured into mould box.
E. The batching mixing and pouring system is controlled by PLC automatical control system. According to raw material chemical test form accurate formula.
F. After completing batching process，it comes to the standstill for pre-curing process. Mixed slurry in the mould box expands because of the hydrogen produced by the chemical reaction of lime aluminum and water. After foaming，it becomes into block cake. The block cake complete the harden process to
achieve the cutting requirements at certain temperature. And the mould box comes out of the cutting area and waiting for cutting.
G. Mould box is transported to the cutting area by the reversal crane and the crane reversal the mould 90 degrees and put it on the cutting car，the cranes manipulator open the mould box and demould Automatically. Then put the block cake with slide pallet on the first cutting car and the block cake do the six point cutting. First，the first cutting car with the block move to the level cutting machine. The level cutting is finished by the cutting blade and cutting wire tensed by air cylinder. Vertical cutting frame lands
from top to bottom automatically and cutting wire move softly and finish vertical cutting.
I. The finished products are pulled out of the autoclave by the windlass and move to the transportation crane. The crane will take the cake to separating machine area to separate the block. Separating machine can use a fixed style or an moving type. At the same time,steam trolley return to the font of the
autoclave through recycling rail and wait for carrying new block cakes.
J . Separated block will move to finished crane。At the same time，the side pallet will be cleaned，and go to the reversal crane and make an empty mould with a cleaned mould for pouring.
K . Waste generated in the production process is once again added to the new production process through waste mixing pouring system. No waste water，waste gas generated. The entire line will continue and repeat the above production process to adopt the needs of different annual production.